autofilling a matrix with 0's

Say I have a matrix A=[1 1 1] B=[2 3]

I want to get this C=[1 1 1;2 3 0]

but I want the 0 to be autfilled depending on how long the A matrix is.

So no manual input, but an automatic fill.

Something like this:

C=[A;B 0:0:end]

Any ideas?

Answer 1

[Star Strider]

One possibility:

A=[1 1 1];
B=[2 3];
C = zeros(size(B,2), size(A,2));
C(1,:) = A;
C(2,1:size(B,2)) = B;

C =

       1     1     1
       2     3     0

A function to do this is:

function C = matcreate(varargin)
nrow = nargin;
ncol = 1;
for k1 = 1:nrow
    len(k1) = length(varargin{k1});
    ncol = max(len(k1), ncol);
end
C = zeros(nrow,ncol);
for k1 = 1:nrow
    C(k1,1:len(k1)) = varargin{k1};
end
end

A=[1 1 1];
B=[2 3];
C  = matcreate(A,B)

[luc]

Great answer! Thanks!

[Star Strider]

Thank you!

My pleasure!